Finding the Third Proportional to 77,728.50 and 168,579.75
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Solution
The third proportional to 77,728.50 and 168,579.75 is: 365,620.49
Step by Step Solution
- Step 1: Write the proportion equation
77,728.50 : 168,579.75 = 168,579.75 : x - Step 2: Convert to fraction form
77,728.50/168,579.75 = 168,579.75/x - Step 3: Cross multiply
77,728.50x = 168,579.75 × 168,579.75 - Step 4: Simplify right side
77,728.50x = 28,419,132,110.06 - Step 5: Solve for x
x = 28,419,132,110.06/77,728.50 - Step 6: Final answer
x = 365,620.49
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Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.